CAMBRIDGE, ENGLAND—Polish police arrested two British teenagers on a school trip to Auschwitz for picking up artifacts from the ground. The 17-year-old boys were spotted in an area where the prisoners’ personal items had been stockpiled in the Nazi-run death camp, where an estimated 1.5 million people, mostly European Jews, were killed during World War II. The police found the boys with a fragment of a razor, part of a spoon, a hair clipper, buttons, and pieces of glass. The Mirror reports that the school said the teens had “picked up the items without thinking.” The boys were fined and given a year’s probation, suspended for three years. To read more about how researchers study this period, go to "The Archaeology of World War II."